Baron Ponsonby of Imokilly in County Cork is in Baron Ireland.
On 13th March 1806 William Ponsonby 1st Baron Ponsonby of Imokilly in County Cork [aged 61] was created 1st Baron Ponsonby of Imokilly in County Cork. Louisa Molesworth Countess Fitzwilliam [aged 57] by marriage Baroness Ponsonby of Imokilly in County Cork.
On 5th November 1806 William Ponsonby 1st Baron Ponsonby of Imokilly in County Cork [aged 62] died. His son John [aged 36] succeeded 2nd Baron Ponsonby of Imokilly in County Cork. Frances Elizabeth Villiers Viscountess Ponsonby [aged 20] by marriage Baroness Ponsonby of Imokilly in County Cork.
On 22nd February 1855 John Ponsonby 1st Viscount Ponsonby [aged 85] died at Brighton. Viscount Ponsonby of Imokilly in Cork extinct. His nephew William [aged 39] succeeded 3rd Baron Ponsonby of Imokilly in County Cork.
In 1861 William Ponsonby 3rd Baron Ponsonby of Imokilly in County Cork [aged 45] died. His first cousin William [aged 54] succeeded 4th Baron Ponsonby of Imokilly in County Cork.
In 1866 William Ponsonby 4th Baron Ponsonby [aged 59] died. Baron Ponsonby of Imokilly in County Cork extinct.